# A Noise-Reduced Light-to-Frequency Converter for Sub-0.1% Perfusion Index Blood SpO$_{\text 2}$ Sensing

> Research article (IEEE Transactions on Biomedical Circuits and Systems, 2020) · cited 15× · AI/ML

**Wikidata**: [openalex:W3043898840](https://www.wikidata.org/wiki/openalex:W3043898840)  
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